Question

Guys please help me this is my second time asking the same thinggg pls

How are coastal ecosystems a major source of oxygen for the rest of Earths waters?

Answer 1

Answer:

The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it.

Explanation:

These plants produce oxygen as a byproduct of photosynthesis, a process which converts carbon dioxide and sunlight into sugars the organism can use for energy. (hope this helps <3)